/**
 * This file is part of 1genia trampoline
 * Copyright (C) 2007 1genia (contact@1genia.com)
 *
 * This library is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; version 3 of the License. 
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details. 
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; see the file COPYING.TXT.  If not,
 * write to the Free Software Foundation, Inc., 51 Franklin Street,
 * Fifth Floor, Boston, MA 02110-1301, USA. 
 **/
package com.genia.toolbox.constants;

/**
 * This interface contains commons regular expressions.
 */
public class RegularExpressions
{

  /**
   * private constructor for a static class.
   */
  private RegularExpressions()
  {
  }

  /**
   * Common regular expression for ip address.
   */
  public static final String IP_ADDRESS = "^25[0-5]|2[0-4][0-9]|[01]?[0-9]?[0-9](\\.(25[0-5]|2[0-4][0-9]|[01]?[0-9]?[0-9])){3}$";

  /**
   * Common regular expression for email.
   */
  public static final String EMAIL = "^([a-zA-Z_=!#$%*/?|^{}`~&'+-]|[\\d])+(\\.([a-zA-Z_=!#$%*/?|^{}`~&'+-]|[\\d])+)*@([a-zA-Z_=!#$%*/?|^{}`~&'+-]|[\\d])+(\\.([a-zA-Z_=!#$%*/?|^{}`~&'+-]|[\\d])+)*\\.[a-zA-Z]{2,}$";

  /**
   * the basic regular expression for an integer.
   */
  private static final String INTEGER_BASE = "[+-]?[0-9][0-9]*";

  /**
   * Common regular expression for an integer.
   */
  public static final String INTEGER = "^" + INTEGER_BASE + "$";

  /**
   * Common regular expression for an float.
   */
  public static final String DECIMAL = "^[+-]?(([0-9][0-9]*(.[0-9]*)?)|(.[0-9][0-9]*))(e" + INTEGER_BASE + ")*$";
};